Key result
Eliminating dominant focal activations is linked to a ~174% higher rate of AF composite success.
Why the study?
Focal activation is believed to drive AF, but whether all focal activations are necessary for AF persistence remains unclear.
Does the elimination of dominant focal activations (DFAs) improve acute procedural outcomes in patients with persistent atrial fibrillation undergoing catheter ablation?
Comparison
Elimination vs non-elimination of dominant focal activations
Authors
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DFA elimination was associated with improved acute AF maintenance; hypothesis-generating and requires randomized confirmation.
Observational (n=35)
Does the elimination of dominant focal activations (DFAs) improve acute procedural outcomes in patients with persistent atrial fibrillation undergoing catheter ablation?
Absolute Event Rate: 68.4% vs 25%
p-value: p=0.018
Identifying and eliminating dominant focal activations using a novel mapping system significantly improves acute procedural endpoints during persistent atrial fibrillation ablation.
Shimojo et al. (2024) conducted an observational in persistent atrial fibrillation (n=35). Elimination of dominant focal activations (DFAs) vs. Non-elimination of DFAs was evaluated on Composite endpoint (termination to sinus rhythm, organization of the rhythm to atrial tachycardia, and AF cycle length slowing) (p=0.018). Elimination of dominant focal activations significantly impacted atrial fibrillation maintenance, achieving the composite endpoint in 68.4% of patients compared to 25.0% without elimination (p=0.018).
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